Towering basalt columns, a creation of fire and ice.

Opinions differ as to whether this Arizona tree was actually used as a Wild West jail, but that hasn't stopped the town from capitalizing on it.

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

This southwestern historic site was designed and built by an artist who wanted his work to "feel at home."

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

A Saint Nicholas-themed ghost town in the Mojave desert.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

Stairs often replace streets on the steep slopes of this old mining town.

All of the 20 occupied houses in this mostly abandoned town feature some curious display of junk art.

The unusual burial monument of Arizona's first governor.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.